dingy

adjective

1. 1

   causing dejection

   a blue day

   the dark days of the war

2. 2

   thickly covered with ingrained dirt or soot

   a miner's begrimed face

   dingy linen

3. 3

   (of color) discolored by impurities; not bright and clear

   dirty" is often used in combination

   a dirty (or dingy) white